Computing-machine



C. B. CORELL.

COMPUTING MACHINE.

APPLICATION FILED SEPT. I4, 1918;

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C. B. CORELL.

COMPUTING MACHINE.

APPLICATION FILED SEPT. .4. 191B.

' 1,349,561 P nted Aug. 17, 1920.

3 SHEETSSHEET 2.

C. B. CORELL.

Patented Aug. 17, 1920.

3 SHEETS-SHEET 3.

COMPUTING MACHINE.

APPLICATION FILED SEPT. 14. 1918.

R... R, .w 5% v 1. m m x m I 5 Si m m Q K r, \k m. NR mu wm UNITED STATES PATENT OFFICE.

CLIFTON B. CORELL, OF NEW YORK, N. Y., ASSIGNOR TO UNDERWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, Y., A CORPORATION OF NEW YORK.

COMPUTING-MACHINE.

Specification of Letters Patent.

- Patented Aug. 17, 1920.

Application filed September 14, 1918. Serial No. 254,078.

To all whom it may concern:

Be it known that I, CLIFTON B. CoRnLL, a citizen of the United States, residing in New York city, in the county of New York and State of New York, have invented certain new and useful Improvements in Computing-Machines, ofwhich the following is a specification.

This invention relates to computing machines, and is herein disclosed as applied to' a combined typewriting and computing machine of the Underwood addendagraph type, in which type the typewriter carriage usually carries a totalizer past a master wheel, which is driven by the typewriter numeral keys. The connections are usually such in said machines that the master wheel may be driven either for addition or subtraction by a reciprocating rack, which is connected to be operated by the typewriter numeral keys.

In these machines, the totalizer is usually settable at any one of a number of points along the typewriter carriage, and it has hitherto been customary to provide an addition-substraction handle, which is associated with the master wheel, and for this purpose is mounted on the frame of the machine, sometimes being connected to the bichrome ribbon handle.

According to the present invention, the addition-substraction handle may be mounted on the totalizer, and connections may be provided whereby, as the totalizer enters the computing Zone, the handle, which has been previously set, becomes effective to determine whether the mechanism should add or subtract. To enable the handle to accomplish this, the totalizer may be provided with a cam or cams operated by the handle, so that a follower or followers on the machine frame will be operated thereby to shift the usual or any convenient form of reversing device. This handle may cause either addition or subtraction, or may cause the numeral keys to be ineffective to effect any computation at all. In addition, the device may be provided with the usual connections by which the numeral keys are automaticallymade ineffective to accomplish computations this latter device being operated, if desired, by the case-shift and any other desired connections.

Other features and advantages will heremafter appear.

In the accompanying drawings,

F1gure 1 is a sectional side v1ew of one form of Underwood addendagraph, showing my invention as applied thereto.

Fig. 2 is a front view of some of the ribbon-shift connections.

F 1g. 3 is an enlarged detail seen in side section.

Fig. 4 is a side view, mainly in section, of a totalizer and a master-wheel operating mechanism.

Fig. 5 is a front view of the mechanism shown in Fig. 4.

Fig. 6 is a top View, mainly sectional, of part of the master-wheel driving and controlling connections.

Fig. 7 is a viewsimilar to Fig. 5, but showing the mechanism set at disconnect pos1t1on.

Fig. 8 is a view similar to Fig. 5, but showing the mechanism set at subtraction position. i

In the embodiment herein illustrated, the mechanism includes many of the features used in one type of the ordinary Underwood addendagraph, most of which are fully disclosed and described in the co-pending application of Henry L. Pitman Serial No.

81,574, filed March 2, 1916. In such machines, the alphabet keys 10 and numeral keys 11, when depressed, swing type-bars 12 by means of sub-levers 13 upwardly and rearwardly, so that the types 14 on the typebars, strike against the front side of the usual platen 15, which is rotatably mounted in the usual carriage 16.

In order to cause the carriage to feed along at each key-stroke, the' carriage is normally under the tension of a springbarrel (not shown), which tends to draw the carriage to the left, and the carriage is permitted to be drawn a step at a time at each depression of a numeral key by means of an shown in the drawings the front and rear rails 21 and 22 on which the typewriter carriage slides, and the computing carriagerail23, on which latter is mounted, by means of ball-bearings 24, the. computing carriage 25 connected to the typewriter carriage by means of a bracket-arm 26. As the typewriter carriage vtravels along, carrying with it the computing carriage 25, a totalizer 27, adju-stably mounted on said latter carriage and comprising computing wheels 28, is carried along, so that the computing wheels 28 engage seriatim with a denominationselector or master wheel 29, which latter is adapted to turn the computing wheels.

The master wheel may be turned in any suitable manner, one manner being shown in said application No. 81,574, aforesaid,

wherein the numeral keys 11 have fast to each of them a cam'30', the cams being differentially shaped so that each numeral key is adapted to give by its cam a definite differential throw to a universal bail 31, formis fast.

ing part of a rocking mechanism 32, which latter, by means of a link 33 pivoted thereto, is adapted to variably reciprocate a horizontal rack 34 (Fig. 4).

The rocking mechanism 32 is pivotally mounted on a shaft 35, on which are fast rock arms 36 to which the universal bail 31- To enable the bail 31 to rock the rocking mechanism, it includes a stirruparm 37, which is normally drawn upward by a spring 38 to engage a pin 39 on one of the arms 36, with the result that when the stirrup-arm engages the pin, the bail 31 rocks as a unit with the whole mechanism 32. The mechanism may also include the usual disconnect arm 40, which 's adapted to bring the stirrup-arm 37 clear of the pin 39, thereby allowing the bail 31 to swing idly if it is' operated by any of the cams 30.

This arm 40 may be connected as usual to the case-shift mechanism described below, and to other devices shown in said application. I

In order to enable the link 33 to reciprocate the rack 34, the link is pivoted to a rock arm 41, to which is fast a second rock arm 42, the latter being connected to the rack 34 by means of a connecting rod or link 43. The rack bar 34, in the form of the mechanism herein disclosed, is normally in mesh with a pinion 44, which is fast to a universal driving wheel 45, said driving wheel being adapted to turn the master wheel 29 by means of gear connections which will be described below.

In efi'ectin'g computations, the rack bar 34 moves forward in mesh with the pinion same time locked by mechanism omitted for the sake of clearness.

In effecting computations, the master wheel 29 turns the computing wheels 28, so that each computing wheel will turn its dial wheel 46 with which it is constantly in mesh. The mechanism for effecting carryovers is diagrammatically shown by the wheels 47, which are co-axial with the master wheel and which are controlled by detents 48 and other devices coiiperating therewith.

' The master wheel, in the form herein illustrated, is normally effective-to turn to effect addition in the computing zone, and to effect this, the master wheel 29 is' fast to a broad pinion 49, which pinion in add-. ing is in mesh with a pinion 50, the latter pinion .being connected preferably by a sleeve or hollow shaft with a pinion 51,

versal driving wheel 45.

In order that the mechanism may be normally effective to add, the sleeve or hollow shaft carrying the pair of pinions 50 and 51 is slidably journaled on a fixed shaft 52, mounted in plates 53 and 54, which serve as supports for the master-wheel driving mechanism, and the pinions are normally' drawn to the adding position, shown at Fig. 95

2, by means of a spring 55, which is effective through a link 56 pivotally attached to a shipper 57, which is supported in an annular groove 58 between the pinions 50' and 51 by riding in an opening in the plate 54. 100

In order to prevent the spring 55 from drawing the pinions 50 and 51 too far to the left, the pinion 51 is provided with a hub' 59 adapted to bear against the wall-plate 54. The pinions 50 and 51, in the form of 105 a detent 62 entering a depression 63,there 11rbeing one such depression for each position of the pointer 61. When turning to this po-- sition, thefinger-piece 60 carries with it a cam-plate 64 comprising a cam-slot 65, in

which rides a headed follower 66, said fol- 120 lower being fast on a subtraction-plate 67, which is thus projected or depressed.

If the totalizer is now brought to the computmg zone, the depressed cam-plate 67 will cam downwardly a follower 68 slidably 125 mounted near the wall-plate 54, causing said follower 68 to shift the universal driving wheel 45 to the right aloIi with the shaft 69, to which it isfast. his carries said wheel45 from the position seen in' Figs. 5 we which is at this time in mesh with the uni- If it is desired to effect subtrac- 1'10 and 7, in which its hub 70 bears against the wall-plate 54, to the position seen in Fig. 8, in which position the driving wheel 45 is no longer in mesh with the pinion 51, but meshes directly with the broad pinion 49, thus directly driving said pinion 49 in the reverse direction from which it was driven when the wheel 45 was effective through the pinion 51. To effect this shifting, the follower 68 is in the form of a plate having a curved bottom 71 which rests on a bell-crank 72 pivoted at 73" and having a downwardly-extending arm 74 which is forked to engage the reduced end 75 of a horizontal rearwardly-extending lever 76 pivoted intermediate its ends at 77 on a horizontal bracket 78. The lever 76 at its rear end is provided with a ball surface 79, which rides in a depression in the shaft 69, with the result that when-the follower 68 is depressed, the shaft 69 slides to the right to the point shown in Fig. 8 against the tension of a spring 80 which normally holds its hub 70 against the wall-plate 54.

In order to insure a smooth action of the cam plate 67 on the follower 68, in bringing.

surface 81 at each end thereof adapted to coiiperate with similar beveled surfaces 82 on the follower 68. To hold the follower 68 against being jarred upwardly out of place,

it'is provided with a shoulder 83 adapted .85 which slide in suitable openings in the wall 86 of the totalizer; and in order to further steady it, it is provided with upwardlyextending arms 87, one toward each end, each arm sliding in a closely fitting slotted bracket 88 fast to the wall of the totalizer. The ends of the slots 88" of the bracket 88, by their close fit preventany tilting of the plate 67.

It will be noted that the finger-piece 60 may be rotated to make the subtractioncam 67 effective after the totalizer is brought into the adding zone,-if so desired. It will, however, usually be more convenient to position theJinger-piece 60 outside the adding zone, since in that case the plate 67 slides freely, but this free sliding does not, however, permit its being moved by striking the follower 68, since the cam 65, by which ig. 7, being able to do this because saidpl'ate 92 carries a headed pin 93 extending through the cam-slot 91. he disconnectorplate 92 may be substantially similar to the plate 67 and be steadied by similar extensions working in similar slots. When the disconnector-plate is in the lower position, shown in Fig. 7, a dwell in the cam 91 locks it there, and the totalizer, when brought into the computing zone, will cause said plate to cam downwardly a follower 94 which slides vertically and is pivoted at its. lower end to a bell-crank- 95 having a second arm 96, which in turn is pivotally connected to the shipper-link. 56. The connections are such that depression of the follower 94 shifts the pinions 50 and 51 to the right to the point seen in Fig. 7. In this position, the pinions 51 and 50' are entirely clearof the driving wheel 45, and the pinion 49 is also clear of the driving wheel 45. The master wheel 29 and the pinion 49 are connected together, as previously stated, by a sleeve or hollow shaft, which is journaled on a fixed shaft 102 fastened in the end plate 53.

The mechanism is also adapted to do typewriting in either one of two colors and, for this purpose, is provided with the usual bichrom'e Underwood ribbon-actuator 103 mounted on the usual universal bar 104, which isadapted to be actuated by the usual heels 105 on the type-bars 12. The actuator 103 includes a shiftable housing 106, which vibrates to and fro with the universal bar 104 and may be shifted thereon to selectively engage either of two pins 107 and 108,- which a are mounted on the ribbon-vibrator109 to raise the ribbon-carrier 110, so that either the black stripe 111 or the redstripe 112 of the ribbon rises to the printing point. To shift the housing 106, there is provided a link 113 extending toward the rightto where it is pivotally attached to a bell-crank 114 on the rear end of a rock-shaft 115.- This rock-shaft may be connected to be operated by the addition-subtraction control described above, and, for this purpose, is providedwith a vertically extending rock-arm 116 having a pin-and-slot connection 117 with a rock-arm 118 fast on a rock-shaft 119, which is adapted to be connected to the shaft 69, so that the shifting of said shaft by the cam 67 will shift the rock-shaft 119 and thereby correspondingly shift the actuator-housing 106.

To effect this, the shaft 69 is provided with an extension 120 supported in' a suitable bracket 121 to the right of the rock- I shaft 115, and said extension is provided with a'pair of collars 122 forming a groove 123 adapted to receive a pin 124, slidably mounted on a downwardly projecting rockarm 125 of the shaft 119, with the result that whenever the extension 120 is shifted, the shaft 119 may be rocked through its pin 124, and thereby shift the ribbon-actuator 106. To enable this ribbon-shifting mechanism to be made ineffective, the pin 12% (Fig. 3) is slidably mounted in a sleeve 126 fast on the rock-arm 125 and is adapted to be moved by a finger-piece 127 either into the slot 1.23 or clear of the collars 122., The fingenpiece 127 may be provided with a detent 128 adapted to engage openings 129 in the sleeve 126, and thereby uphold it in. either of its adjusted positions. A pin 130 fast in the post 131, which connects the finger-piece 127 to the pin 12%, may work in a slot 132 of short enough length to properly limit the throw of the pin 124E.

if it is desired to set the ribbon-mechanism to write in a given color and at the same time to disconnect the computing mechanism, the disconnect-finger-piece 133 pivoted at 1341 may be drawn forwardly, thereby pushing rearwardly a link 135 at its lower end, so as to make the disconnectarm 4-0 effective, and the addition-subtraction finger-piece 60 may be adjusted to shift the mechanism, so that the printing will be done in the desired color. The disconnectarm may be.also operated by the usual link 135 connected to the case-shift frame 136.

Moreover, the ribbon-mechanism may be disconnected from the shaft 69, 120, at any time by withdrawing the finger-piece 127. The ribbon can then be set to write either color by moving the finger-piece 127 to the right or left, as the case may be, thus rocking the shaft 119 and shifting the housing 106 to write in the desired color.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others,

Having thus described my invention, l claim:

1. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, typewriter numeral keys for causing the master wheel to effect such computations,

' connections whereby said keys cause the turning of said master wheel in either direc tion, and a device mounted infsaid totalizer adapted to be set to cause said connections to be effective additively or subtractively.

2. lln a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master 'whe el for effecting computations in said totalizer, type writer numeral keys for causing the master wheel to effect such computations, connections whereby said keys cause the turning 3. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, a shifting device for causing said computations to be efiected additively or subtrac tively, a cam bar on said totalizer, means for projecting said cam bar, and a follower adapted to be struck by'said cam bar in the computing zone to cause the follower to be effective on said shifting device to determine the character of computation.

4. In a typewriting machine, the combination with a traveling carriage and a to talizer settable thereon, of a cam bar adapted to be set on said totalizer, a follower adapted to be operated by said cam bar in a computing zone, a master wheel for effecting computations in said totalizer, a gear-shift ing device for determining whether said computations shall be effected additively or subtractively, and connections from said follower to said shifting device to enable the cam to shift the shifting device.

5. In a typewriting machine, the combination with a traveling carriage and a totalizer adapted to be set on said carriage, of a master wheel for effecting computations in said totalizer, a plurality of cam bars mounted in said totalizer, a plurality of followers adapted to control the master wheel, and a finger-piece on the totalizer for selectively projecting said cam bars to operate the followers.

6. In a typewriting machine, the combination with a traveling carriage and a totalizer adapted to be set on said carriage, of a master wheel for effecting computations ire in said ,totalizer, a plurality of cam bars mounted in said totalizer, a plurality of followers adapted to control the master wheel, a finger-piece on the totalizer for selectively projecting said cam bars to operate the followers, abichrome printing mechanism forming part of the typewriter, and connections from said followers to selectively control the color of printing.

7 In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel, a clutch mechanism for said master wheel to determine whether it shall turn and how, a plurality of cam bars mounted in said totalizer, each cam bar adapted to substantially cover a computing zone, a finger-piece in said totalizer for selectively projecting and means connecting said followers to set said clutch mechanism to enable the cams to selectively control the clutch mechanism.

8. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel, a clutch mechanism for said master wheel to determine whether it shall turn and how, a plurality of cam bars mounted in said totali-zer, each cam bar adapted to substan-' tially cover a computing zone, a fingerpiece in said totalizer for selectively projecting said cam bars, a follower for each cam bar, means connecting said followers to set said clutch mechanism to enable the cams to selectively control the clutch mechanism, said clutch mechanism including a shiftable shaft, a bichrome mechanism forming part of the typewriter, and a device for connecting said shaft to said bichrome mechanism at will.

9. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel, a clutch mechanism for said master wheel to determine whether it shall turn and how, a plurality of cam bars mounted in said totalizer, each cam bar adapted to substangear-shifting device for determining how tially cover a computing zone, a fingerpiece in said totalizer for selectively projecting' said cam bars, a follower for each cam bar, means connecting said followers to set said clutch mechanism to enable the cams to selectively control the clutch mechanism, said clutch mechanism including a shiftable shaft, a bichrome mechanism forming part of the typewriter, a device for connecting said shaft to said bichrome mechanism at will, typewriter numeral keys for operating the master wheel and for printing, and means independent of the shiftable shaft for disconnecting said keys at will from the master wheel.

10. In a typewriting machine,the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, a gear-shifting device for determining how said master wheel shall turn, cam bars adapted toproject from said totalizer, a follower for each cam bar, a shaft forming part of said shifting device, connections whereby said followers can throw said shaft, a bichrome mechanism including a rock-shaft and a rock-arm, and a device on said rock-arm adapted to be engaged with said shaft at will to cause the cams to control 'the color printing.

11. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, a

said master wheel shall turn. cam bars adapted to project from said totalizer, a

follower for each cam bar, a shaft forming part of said shifting device, connections whereby said followers can throw said shaft, a bichrome mechanism including a rock-shaft and a rock-arm, and a device on said rock-arm adapted to be engaged with said shaft at will to cause the cams to control the color printing, said device adapted to be manually shiftable when disconnected from the shaft to control the color printing.

12. In a typewriting machine, the combi nation with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in'said totalizer, a pair of cams slidably mounted in the total izer, followers adapted to be operated by said cams in the computing zone to control computations, and a single finger-piece for selectively positioning said cams.

13. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, a pair of cams slidably mounted in the totalizer, followers adapted to be operated by said cams in the computing zone to control computations, a finger-piece for positioning said cams, a cam plate fast to said fingerpiece engaging a follower mounted on one of the pair of cams and adapted to position it, and including a dwell adapted to hold it positioned, and a second cam plate engaging a follower in the other of the pair of cams, and also including a dwell for positioning and holding said other cam plate.

14. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, a cam plate extending length of the totalizer, a follower adapted to be struck by said cam plate in the computing zone to control computations, a finger-piece having a second cam plate fast thereto, a follower on the first cam plate engaging the cam on the second cam plate,-

either the pinion or the idle gear selectively.

to drive the master wheel either forwardly or baclnvardly, a cam plate in said totalizer, and'a follower operable by said cam plate in a computing zone to shift said driving gear. I

substantially the v 16. In a typewriting machine, the combination with a totalizer and a master wheel, of a driving gear for turning said master wheel, a pinion secured to the master wheel through which said turning is effected, an idle gear engaging said pinion, means for shifting said driving gear so that it engages either the pinion or the idle gear selectively to drive the master wheel either forwardly or backwardly, a cam plate in said totalizer, a follower operable by said cam plate in a computing zone to shift said driving gear, a second cam plate in said totalizer, a follower operable by said-second cam plate, and means whereby said second follower may shift said idle gear to disconnect the driving gear from the master wheel pinion.

17. In a typewriting machine, the comblnation with a totalizer and a master wheel, of a driving gear for turning said master wheel, a pinion secured to the master wheel through which said turning is effected, an idle gear engaging said pinion, means for shifting said. driving gear so that it engages either the pinion or the idle gear selectively to drive the master wheel either forwardly or backwardly, a cam plate in said totalizer, a follower operable by said cam plate in a computing zone to shift said driving gear, a shaft fast to said driving gear, a bichrome mechanism for controlling the color of typewriter printing, and means for causing said shaft to variably position said bichrome mechanism to selectively determine the color of printing.

18. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for efl ecting computations in said totalizer,

- a cam in said totalizer, a bichrome mechatill:

till

nism for said typewriter, a fingenpiece for making'said cam effective or ineffective, a follower for said cam, and means\connecting said follower to said bichrome mechanism to control the color of printing.

19. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, acam in said totalizer, a bichrome mechanism for said typewriter, a finger-piece for making said cam e'fiective or ineffective, a follower for said cam, a second finger-piece, and. means controlled by said second fingerpiece to connect the bichrome mechanism to the follower to vary the color of the printing.

20. In a typewriting machine, the combination with a traveling carriage and a totalizer settable thereon, of a master wheel for effecting computations in said totalizer, a cam in said totalizer, a bichrome mechanism for said typewriter, a finger-piece for making said cam effective or ineffective, a follower for said cam, and means, including a fingerpiece for controlling the same for connecting the bichrome mechanism to the follower to vary the color of the printing, said lastnamed finger-piece being settable to render said connecting means ineffective, thereby enabling independent selection of the color of printing.

21. In a typewriting machine, the combination with a gear-shifting mechanism including a shaft having a collar, of a bichrome mechanism, an arm for operating said bichrome mechanism, and a finger-piece adapted to be set on said arm to engage said collar to cause the shifting of the shaft to shift the bichrome mechanism.

- 22. In a combined typewriting and computing machine, the combination with a traveling carriage and a totalizer connected thereto, to travel therewith, of a master wheel for actuating the totalizer as the latter travels past the former, master-wheel driving mechanism, controlling means for said driving mechanism, and settable means on said totalizer to operate said controlling means, and thereby render said driving mechanism effective to perform either addition or subtraction, or ineffective, in accordance with the setting of said settable means.

23. In a combined typewriting and computing machine, the combination with a traveling carriage and a totalizer settable thereon, of a master Wheel for effecting computations in said totalizer, a pair of separatelysettable cams in said totalizer extending substantially the width thereof, a follower for each cam, a bell-crank operated by each follower, a master wheel drive, including a revoluble member shiftable axially by one of said bell-cranks, to determine the effectiveness or ineffectiveness of said master wheel drive, and a second revoluble member shiftable axially by means operated. by the other bell-crank, to determine the character of the computation to be effected.

24. In a combined typewriting and computing machine, in combination, a totalizer, a master wheelhmeans to effect a relative traveling movement therebetween, to enable actuation of said totalizer. by said masterwheel,master-wheel driving means, a settable device on said totalizer, and means, controlled by said settable device, whereby said master-wheel driving means will be rendered ineffective, or effective for either addition or subtraction, in accordance with the setting of said device.

25. In a combined typewriting and computing machine, in combination, a totalizer including a series of computing wheels, a master-wheel, means to effect a relative traveling movement between'said totalizer and said master wheel, to cause engagement seriatim of said computing wheels with said master wheel, numeral keys, numeral-keyactuated means to operate said master wheel in either direction an amount in accordance with the value of the numeral lrcy depressed, a device mounted in said totalizer,

Nil

ated means will be caused to actuate said master wheel, in accordance with the indications of said device.

26. In a combined typewriting and computing machine, in combination, a totalizer including computing wheels, a master wheel, means for effecting engagement seriatim of said computing wheels with said master wheel, numeral-key-actuated means for operating said master wheel in either direction, to effect either addition or subtraction, a device mounted in said totalizer, settable to indicate addition or subtraction, means, controlled by said device, to actuate said numeral-key-actuated means, in accordance with the setting of said device, a device for varying the color of printing,'and means for connecting said color-varying device with said settable device, whereby actuation of the latter will cause actuation of.

the former.

CLIFTON B. CORELL.

Witnesses:

CATHERINE A. NEWELL, JOHN WALDHEIM. 

